baber/WOPTO huggingface dataset:
Patent DE-112016006735-B4 (DE)
Title: Infrarot-Temperaturmessverfahren und -vorrichtung
Inventor: YUAN JIANMIN
IPC: G01J5/00
Filed: 2016-04-13
Granted: 2023-12-21
Abstract: Infrarot-Temperaturmessverfahren, dadurch gekennzeichnet, dass das Infrarot-Temperaturmessverfahren folgende Schritte umfasst:
 - Vergrößern (100) eines erfassten ursprünglichen Infrarotbildes abhängig von einer voreingestellten Vergrößerung, um ein zweites ursprüngliches Infrarotbild zu erzeugen;
 - Gruppieren (101) jedes ursprünglichen Pixels in dem zweiten ursprünglichen Infrarotbild, um Pixelsätze mit mehreren Pixeln zu erzeugen;
 - Bestimmen (102) eines Pixels an einer vorbestimmten Position in jedem der Pixelsätze als ein Referenzpixel;
 - Bestimmen (103) einer Temperatur der Referenzpixel als eine Temperatur eines dem Referenzpixel entsprechenden ursprünglichen Pixels des erfassten ursprünglichen Infrarotbildes;
 - Erhalten (104) von Temperaturen mehrerer Zielpixel abhängig von der Temperatur der Referenzpixel, wobei die Zielpixel Pixel in den Pixelsätzen darstellen;
 - Erhalten (105) einer Temperatur eines voreingestellten Temperaturerfassungspunkts abhängig von den Temperaturen der mehreren Zielpixel, wobei die Temperatur des Temperaturerfassungspunkts den Temperaturen der mehreren Zielpixel entspricht.
Patent DE-112016007305-B4 (DE)
Title: Drehmechanismus eines teilbaren Anschlagsteils für einen Reißverschluss und einen solchen aufweisenden Reißverschluss
Inventor: TAKAZAWA SHIGEYOSHI
IPC: A44B19/38
Filed: 2016-09-30
Granted: 2023-09-21
Abstract: Drehmechanismus (5) eines teilbaren Anschlagteils (30) für einen Reißverschluss (90), wobei der Drehmechanismus (5) aufweist:Ein erstes Teil (51) mit einem ersten Hauptkörper (11), eine in dem ersten Hauptkörper (11) vorgesehene Öffnung (12), und einen oder mehrere in der Öffnung (12) vorgesehene erste Kontaktbereiche (110); undein zweites Teil (52) mit einem zweiten Hauptkörper (21) und einem oder mehreren an dem zweiten Hauptkörper (21) als Vorsprung gebildeten zweiten Kontaktbereichen (120), wobeieiner der ersten und zweiten Kontaktbereiche (110, 120) eine bogenförmige geneigte Fläche (130) aufweist, die in einem Bogen um eine Drehachse (AX) führt, und der andere von den ersten und zweiten Kontaktbereichen (110, 120) einen Gleitbereich (140) aufweist, der auf der bogenförmigen geneigten Fläche (130) gleitet, und wobeider Gleitbereich (140) derart auf der bogenförmigen geneigten Fläche (130) gleitet, dass wenigstens einer von den ersten und zweiten Hauptkörpern (11, 21) um die Drehachse (AX) gedreht wird und derart, dass ein axialer Abstand zwischen den ersten und zweiten Hauptkörpern (11, 21) entlang der Drehachse (AX) verändert wird,dadurch gekennzeichnet, dassder erste Kontaktbereich (110) von einer Wandfläche der Öffnung (12) vorragt, wobei sich die Wandfläche in einer Tiefenrichtung der Öffnung (12) erstreckt.
Patent DE-112018004441-B4 (DE)
Title: Fahrzeugklimaanlageneinheit
Inventor: IDE SHINJI
IPC: B60H1/00
Filed: 2018-09-20
Granted: 2021-12-02
Abstract: Eine Fahrzeugklimaanlageneinheit weist ein Klimaanlagengehäuse (12), in dem ein Gehäusedurchgang (123) definiert ist, durch den eine Luft strömt, und ein Gebläse (20) auf. Das Gebläse weist einen Gebläselüfter (201), der in dem Klimaanlagengehäuse aufgenommen ist und gestaltet ist, um sich um eine Lüfterachse (CL1) zu drehen, um zu bewirken, dass die Luft durch den Gehäusedurchgang strömt, und einen Gebläsemotor (202) auf, der in dem Klimaanlagengehäuse aufgenommen ist und gestaltet ist, um den Gebläselüfter zu drehen. Das Klimaanlagengehäuse weist einen Gehäusekörper (13) mit einem Gehäuseöffnungsloch (13a, 13b), das außerhalb des Gebläses in einer radialen Richtung der Lüfterachse angeordnet ist und in der radialen Richtung offen ist, und eine Öffnungslochabdeckung (14, 26) auf, die an dem Gehäusekörper befestigt ist, um das Gehäuseöffnungsloch zu schließen. Die Öffnungslochabdeckung ist von einem Gehäusekörper abnehmbar. Das Gehäuseöffnungsloch hat eine Größe, die es ermöglicht, dass das Gebläse durch das Gehäuseöffnungsloch hindurchtritt, wenn das Gebläse aus dem Klimaanlagengehäuse herausgenommen wird.
Patent DE-112018007754-B4 (DE)
Title: Informationsverarbeitungsvorrichtung, Informationsverarbeitungssystem, Verfahren und Programm
Inventor: GOTO YASUAKI
IPC: G07C3/14
Filed: 2018-07-23
Granted: 2023-08-31
Abstract: Informationsverarbeitungsvorrichtung (100), umfassend:Inspektionsdatenempfangsmittel (120) zum Empfangen von Inspektionsdaten von einer tragbaren Vorrichtung (200), wobei die Inspektionsdaten durch die tragbare Vorrichtung (200) bei Inspektionsarbeiten gesammelt werden, die in Bezug auf ein Diagnoseziel durchgeführt werden;Lernmittel (130) zum Eingeben der Inspektionsdaten, die in der Vergangenheit gesammelt wurden, in ein neuronales Netz, um das neuronale Netz eine Diagnose dahingehend lernen zu lassen, ob das Diagnoseziel beschädigt ist oder nicht;Diagnosemittel (140) zum Eingeben der Inspektionsdaten, die durch die Inspektionsdatenempfangsmittel (120) erhalten wurden, in das neuronale Netz, um basierend auf einer Ausgabe des neuronalen Netzes zu diagnostizieren, ob das Diagnoseziel beschädigt ist oder nicht; undInstruktionsbereitstellungsmittel (150) zum Übertragen einer Instruktion, welche ein Verfahren einer durch einen Arbeiter (50) an dem Diagnoseziel auszuführenden Inspektionsarbeit angibt, und einer Instruktion, welche einen Inhalt einer durch den Arbeiter (50) in Übereinstimmung mit einem Diagnoseergebnis, das durch die Diagnosemittel (140) erhalten wurde, die das Diagnoseziel diagnostizieren, zu tätigenden Aktion angibt an die tragbare Vorrichtung (200)wobei die Inspektionsdaten Tondaten eines Schlagtons umfassen, der bei einem durch den Arbeiter (50) durchgeführten Hammer-Test auftritt,wobei die Instruktionsbereitstellungsmittel (150) basierend auf den von der tragbaren Vorrichtung (200) erhaltenen Tondaten des Schlagtons bestimmen, ob die Stärke des Schlagens auf das Diagnoseziel durch den Arbeiter (50) geeignet ist, und wobei bei Bestimmung, dass die Stärke des Schlagens auf das Diagnoseziel nicht geeignet ist, die Instruktionsbereitstellungsmittel (150) der tragbaren Vorrichtung (200) eine Instruktion bereitstellen, die Stärke des Schlagens zu ändern, und den Arbeiter (50) über die tragbare Vorrichtung (200) über die Instruktion informieren.
Patent SK-283669-B6 (SK)
Title: Use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing glass pillars
Inventor: NEMETH LASZLO
IPC: A61C13/01
Filed: 1996-07-19
Abstract: The present invention relates to the use of novel glass compositions in preparing dental glass pillars and support pillars, and method for producing the glass pillars. The glass material comprises a high percent of boron trioxide, which makes possible a reduced alkali oxide content. The dental glass pillars thus obtained are bio-compatible and can be used in the preparation of dental bridgework, most preferably when posterior teeth serving for support of the said bridgework are missing.
Patent SK-284401-B6 (SK)
Title: Textile support for reinforcing shirt collar
Inventor: GROSHENS PIERROT
IPC: D04H13/00
Filed: 1999-01-22
Abstract: A textile support (1) for reinforcing a shirt collar or a similar piece of clothing, in the form of a non-woven textile lap (2) reinforced by a knitted fabric (3) contains reinforcement yarns (4, 5), extending along the warp, between the stitch wales. The textile support (1) is either connected directly to the top and bottom part (11, 12) or to interlining (15) whereas the interlining is than itself connected to the top and bottom part.
Patent CZ-281131-B6 (CZ)
Title: Dry packing for a rotating detail
Inventor: BOLUSSET DANIEL ING
IPC: F16J15/16
Filed: 1991-01-18
Abstract: Of the stationary body (8) and rotating body (4) forming the seal, one (8) is provided with an internal environmental-control circuit (9, 13). The invention applies particularly to the manufacture of turbo- machinery. <IMAGE>
Patent CZ-290597-B6 (CZ)
Title: Purification process of 2,6-diisopropylphenol
Inventor: PAIOCCHI MAURIZIO
IPC: C07C67/14
Filed: 1995-09-18
Abstract: Disclosed is a purification process of 2,6-diisopropylphenol, which process is characterized in that raw 2,6-diisopropylphenol is converted to ester, being solid at room temperature, of the general formula I, in which the individual symbols have specific meanings, and this ester is then let to crystallize in order to obtain the purity grade equal to or higher than 99.9 percent, whereupon the ester is subjected to hydrolysis.
Patent SK-281604-B6 (SK)
Inventor: WEICHERT ANDREAS
IPC: C07C317/44
Filed: 1996-07-18
Abstract: Opisujú sa benzoylguanidíny všeobecného vzorca (I), v ktorom R1 znamená skupiny R4-SOm, R5R6N-SO2-; -Op-(CH2)q-(CF2)r-CF3; -SR10, -OR10 alebo -CR10R11R12; R2 znamená skupinu -(CH2)u-(CF2)t-CF3, R3 znamená atóm vodíka alebo nezávisle to isté ako R1, ako aj ich farmaceuticky prijateľné soli. Získavajú sa reakciou zlúčenín všeobecného vzorca (II) s guanidínom. Sú to zlúčeniny s vynikajúcim účinkom na obehový systém.ŕ
Patent CZ-279114-B6 (CZ)
Title: Turbine stage
Inventor: DETANNE FRANCOIS ING
IPC: F01D1/02
Filed: 1991-05-13
Abstract: Turbine stage comprising a bank of fixed blades (1) integral with the stator (3) of the turbine supporting a diaphragm followed by a bank of moving blades (7) mounted on a disc (9) integral with the rotor (6) of the turbine, the said bank of moving blades (7) comprising at its apex a leaktight packing (10) constituted from several chambers (11). The disc (9) comprises intake orifices (16) opening into the space between the diaphragm (4) and the disc and disposed in the vicinity of the peripheral section of the disc (9). 
<??>The intake orifices (16) are connected by ducts (17) traversing at least some moving blades (8) up to outlet orifices (18) opening at the apex of these blades (8) downstream of the leaktight packing (10) or in a chamber of the latter (11). 
<??>The disturbed flow at the feet of the fixed blades (2) and the leakage flow between diaphragm (4) and rotor (6) are taken in by the orifices (16), which improves the efficiency. 
<IMAGE>
Patent CZ-278307-B6 (CZ)
Title: Process for preparing proteinaceous hydrolyzate for the production of foam-producing solutions
Inventor: KREJCI JAKUB ING
IPC: A62D1/04
Filed: 1990-04-02
Abstract: The use of activated sludge for production of proteinaceous hydrolysate for the production of foam-producing solutions. Activated sludge from a waste water treatment plant serves as a raw material, having by weight a content of dry matter of 6.0 to 94.0 %, preferably 10.0 to 25.0 % , all nitrogen 5.0 to 12.0 %, preferably 9.0 to 12.0 %, in relation to the dry matter, with an ash content of 8.0 to 35.0 %, preferably 10.0 to 20.0 %, in relation to the dry matter, which undergoes hydrolysis in an acidic or alkaline environment under atmospheric pressure at 50 to 99 degrees C, then the coagulate and insoluble matter is removed from the hydrolysate and it is modified to a pH of 6.0 to 8.0, preferably 6.5 to 7.0 by addition of monohydric mineral acid or alkaline metal hydroxide or ammonia water, and thickened so that the subsequent density is 1.10 to 1.30 g.cm<-3>. Hydrolysis in an acidic environment is provided by a monohydric, dihydric or trihydric mineral acid, whose concentration in the reaction mix is 3.0 to 18 %, preferably 4.0 to 10.0 %. Hydrolysis in an alkaline environment is provided by alkaline reagents such as potassium hydroxide, sodium hydroxide, calcium hydroxide or calcium oxide, whose concentration in the reaction mixture is 3.0 to 20.0 % by weight, preferably 5.0 to 12.0 %. The hydrolysis lasts for 3 to 12 hours, preferably 6 to 8 hours.
Patent CZ-283243-B6 (CZ)
Title: Clamp and tongs for clamping thereof
Inventor: OETIKER HANS
IPC: B65D63/06
Filed: 1991-08-13
Abstract: A clamp structure with one or several plastically deformable ears (12) has its holding ability increased by an external strengthening member (20) surrounding the or each ear (12) in its non-deformed condition. The lateral portions (22) of the strengthening member (20) are thereby so constructed and shaped that an application of a force to the lateral members (22) will cause the ear (12) to be plastically deformed. <IMAGE>
Patent CZ-281014-B6 (CZ)
Inventor: SOENNECKEN HARTMUT
IPC: F16D69/00
Filed: 1992-06-12
Abstract: U třecího obložení (1), určeného zejména pro  brzdové systémy a sestávajícího z třecího  elementu (4), provedeného z bezazbestového  třecího materiálu, a z  brusného elementu (6),  provedeno z brusného materiálu s termostatickým  pojivem na bázi přírodní nebo syntetické  pryskyřice, je brusný element (6) včleněn do  třecího elementu (4), což je s přibývajícím  opotřebením třecího obložení (1) umožní v  intervalech regenerovat třecí vlastnosti třecího  protikusu přitlačovaného na třecí obložení (1).  Při způsobu výroby třecího obložení se brusné  elementy tvaru vrstvy vyrobí odděleně  protlačováním, lisováním nebo ražením, načež se  lisuje brusný element, jako vložená vrstva spolu  s několika vrstvami třecího elementu.ŕ
Patent CS-277182-B6 (CS)
Title: Process for treating green wood
Inventor: ERDOSI GYORGY ING
IPC: B27K3/18
Filed: 1988-04-27
Abstract: In a process for treating freshly cut timber, during which the raw timber prepared for drying, e.g. sawn timber, is dried in a known manner in a drying chamber at a temperature between 40 and 100 DEG C until a moisture content of at least 30 % is attained, a solution of a salt of an alkaline earth metal in distilled water is mixed with nitric acid and the resultant solution is sprayed at least once into the drying chamber. This sprayed product softens the hard pectin present in the wood fibres which prevents the escape of moisture and at the same time the salt of the alkaline earth metal is incorporated between the wood fibres.
Patent CZ-281835-B6 (CZ)
Title: Device for positioning the work when shearing perforated blank to details
Inventor: JASNY JAN
IPC: B21D28/04
Filed: 1989-06-26
Abstract: This equipment for adjusting the position during cutting perforated blanks into parts consists of a basic plate (20) in which there are leading grooves (23) and clamping holders (21) for fixing  the movable parts (7) of the end stop. In the base place (20) there are two rows of holes (19) with the same mutual span in which there are the fixed pins (3) of the lower part (1) of the adjustable end stop on the rib (2) of which, on the horizontal groove (5), there is the upper part (4) of the adjustable stop piece. The movable part (7) of the stop part consists of a leading bar (8) with leading attaching units (9). On the upper side there are adjustable stop pieces (11) with replaceable pins (12) and two rotating stop pieces (13) with a head (15) with a groove (18). Each next edge of the head (15) is located from the initial position of the first edge and the vertical axis of the rotary stop unit (13) the distance descending lower by 0.1 mm. The lower part (11) of the adjustable stop unit has on the upper side in the central part a rib (2) and on each side of the lower part there is a fixed pin (3) the axes of which are shifted from the horizontal axis of the rib (2) in the same direction by 0.5 mm. The upper part (4) of the adjustable stop unit in the central part of the opposite axial groove (5) and its side walls (6) which are parallel to the walls of the grooves (5) which are located so that each next side wall (6) is 2 mm further away from the vertical axis of the groove (5).<IMAGE>
Patent CS-277364-B6 (CS)
Inventor: KRAL MILOS ING CSC
IPC: B01D19/00
Filed: 1990-12-28
Abstract: Odplyňovačje vytvořen z válcové stojaté nádoby
(I) s rozvodem vody tryskami (4), která je
uzavřena na obou koncích dny. Horní dno je
opatřeno separátorem (3) páry a hrdlem (2) s
odvodem brýd. Dolní dno je opatřeno válcovým
prstencem (5) pro spojení se zásobní nádrží
(II). Do válcového prstence (5) je vložena mezikruhová
válcová parní komora (6). Mezikruhový
prostor (7) vzniklý mezi válcovým prstencem
(5) a mezikruhovou válcovou parní komorou (6)
je v dolní části uzavřen děrovanou mezikruhovou
deskou (8). Mezikruhová válcová parní komora
(6) je pod děrovanou mezikruhovou deskou
(8) opatřena otvorem (9) výtoku páry. Proti
otvoru (9) výtoku páry je umístěn vodorovný
mezikruhový plech (10). Řešení nalezne
uplatnění při nové konstrukci odplyňovačů.
Patent CZ-284966-B6 (CZ)
Title: The use of creatine phosphate or pharmaceutically acceptable salt thereof for treating tumors
Inventor: BRU NICOLE
IPC: A61P35/00
Filed: 1992-12-01
Abstract: A method for treatment of human tumors which are sensitive to the compounds recited below, particularly those which have become resistant to chemotherapy. The method comprises administering an effective amount of creatine phosphate or phosphoenolpyruvic acid.
Patent CZ-294349-B6 (CZ)
Title: Apparatus for encoding and decoding wideband digital information signal, method for encoding and decoding, coded signal and record carrier
Inventor: VAN DE KERKHOF LEON MARIA
IPC: H04B14/04
Filed: 1995-10-06
Abstract: The present invention relates an apparatus comprising - an input (1)  for receiving the wideband digital information signal, - signal splitting means (2) for, during a specific time interval, splitting the wideband digital information signal into M narrow band sub signals (SBi1 to SBiM), - scale factor determining means (6) for determining a scale factor for subsequent signal blocks in each of the sub signals (SBi1 to SBiM), - quantization means (14) for quantizing the samples in a signal block into quantized samples in response to bit allocation information supplied to the quantizing means so as to obtain quantized sub signals, - bit allocation information deriving means (34, 41, 48) for deriving said bit allocation information, the bit allocation information being representative of the number of bits with which samples in a signal block of a sub signal will be represented after quantization in the quantization means, - formatting means (20) for combining quantized samples in the signal blocks of the quantized sub signals and scale factors into a digital output signal having a format suitable for transmission or storage, - signal block length determining means (30) for determining the lengths of the signal blocks in at least one of the sub signals and for generating block length information, where the lengths of subsequent signal blocks in said at least one sub signal differ, wherein said formatting means (20) further being adapted to include the block length information into the digital output signal for transmission or storage. The invention further relates to a decoding device, as well as a method for encoding and decoding a wideband digital information signal. Further suggested is a coded digital signal containing a wideband digital information signal containing information about a scale factor and M narrow band quantized  sub signals, as well as information about block lengths, and a record carrier on which the signal has been stored.
Patent CZ-284683-B6 (CZ)
Inventor: BOTTCHER ANDREAS
IPC: F27B9/30
Filed: 1995-09-28
Abstract: Zařízení k regulaci tlaku plynu v sousedních zonách průběžné pece (10) obsahuje první měřicí místo (12) pro zjišťování tlaku (P1) plynu na jednom konci první zony (B) pece, druhé měřicí místo (14) pro zjišťování tlaku (P2) plynu na začátku druhé zony (K) pece bezprostředně sousedící s první zonou (B) pece, přívodní ústrojí (28) pro přívod plynu do druhé zony (K) pece s odstupem od ruhého měřicího místa (14), odběrové ústrojí (20) pro odsávání plynu z druhé zony (K) pece v bezprostředním sousedství s druhým měřicím místem (14) na straně odvrácené od prvního měřicího místa (12), přičemž odběrové ústrojí (20) je regulovatelné v závislosti na poměrech (P1 : P2) tlaků mezi sousedními zonami (B, K) pece určených v závislosti na čase v měřicích místech (12, 14).ŕ
Patent CZ-280929-B6 (CZ)
Title: Boot for relieving front part of foot
Inventor: PRAHL JAN E M
IPC: A61F13/04
Filed: 1994-10-21
Abstract: The shoe (10) has a sole (11) triangular in shape when seen in side view, with thickness reducing towards the rear, and ending at the front short of the middle portion of the wearer's foot. The sole is hollow with vertical supports (19-23) joining the continuous base surface (26) and the continuous foot bed (13) adjacent to the shoe upper (12). At the middle part at least, the supports increase in diameter or in horizontal cross-sectional area in the direction of the base surface. Their lengthwise axes can be inclined rearwards at between 10 and 20 deg., while that of the upper part can at between 5 and 15 deg. to the horizontal. <IMAGE>
Patent SK-278156-B6 (SK)
Title: Method of continual polymerization in gaseous phase of one or more alpha-olefins
Inventor: CIZMARIKOVA RUZENA
IPC: C07C217/04
Filed: 1989-04-07
Abstract: The continual polymerization of one or more alpha-olefins with catalyst on base of transient metal is realized in reactor with fluid and/or mechanical mixed bad, at which is continual to reactor introduced very small mass or efficiency retarders, generally smaller than 0,1 ppm by through-flow speed, which is changing in time so, as to keep in base constant either contents of transient metals in produced polymer, or polymerization speed. Suitable efficiency retard include inhibitors of polymerization as a.e. oxygen, alcohols, carbon monoxide and carbon dioxide and compounds, which are donors of electrons as amides and ethers.
Patent CZ-307211-B6 (CZ)
Title: A laying machine and the use of a blade mechanism
Inventor: GUSTAFSSON LARS
IPC: F16L1/032
Filed: 2011-01-26
Abstract: The present invention relates to a laying machine for laying at least one flexible casing or tube, cable or wire including: a blade arrangement for making a trench in the ground, a consolidation and laying means being arranged behind the blade arrangement, for clearing and safe-guarding the trench from collapsing while laying at least one flexible casing or tube, cable or wire into the trench. A blade assembly comprising compartments for cooling fluid and air.
Patent CZ-307367-B6 (CZ)
Title: A method of producing a nickel-tungsten deoxygenation catalyst
Inventor: TIŠLER ZDENĚK
IPC: C10G45/08
Filed: 2016-11-14
Abstract: A method of producing a nickel-tungsten deoxygenation catalyst consists in preparing a carrier made of pseudoboehmite powder and mesoporous silica SBA-15 that are mixed in a ratio of 2:1 to 6:1 and homogenized for 2 to 12 hours, the mixture is moistened with a solution of HNOat a concentration of 0.5 to 2 mol/dm, it is agglomerated and dried at a temperature from 80 to 120°C for 12 hours; the temperature is increased to 300 to 600°C , during which the particles are annealed for 4 to 8 hours. Subsequently, 15 parts by weight of the carrier are impregnated with a solution of 6 to 9 parts by weight of ammonium dodecahydrate, 10 to 18 parts by weight of nickel nitrate hexahydrate and 3 to 5 parts by weight of citric acid hydrate in demineralized water to which 1 to 2 parts by weight of ammonium fluoride are added; the impregnated carrier is dried at a temperature from 75 to 250°C for 2 hours and annealed at a temperature of 1°C/min at a temperature from 450 to 600°C for 6 hours.
Patent CZ-308750-B6 (CZ)
Title: small firearm holster locking system
Inventor: MICHÚT VIKTOR
IPC: F41A11/02
Filed: 2017-12-21
Abstract: In the small firearm holster locking system, the holster, which consists of an upper holster (1) and a lower holster (2), which slide on each other by protrusions fitting into grooves formed in the upper housing (1) and in the lower housing (2). The basis is that in the lower case (1) an angular double-arm lever (5) pivots in the direction of the longitudinal axis of the weapon, one arm of which (51) opens with its end into a vertical opening (25) formed in the horizontal rib (24) of the lower housing (2), and its second arm (52) opens at its end against a protrusion (4) formed in the upper housing (1), between the horizontal arm (52) of the angular double-arm lever (5) and a compression spring (6) is biased by the rib (24) of the lower housing (2).